https://forum.netgate.com/topic/193921/1866-838-4906-pol%C3%ADtica-de-cancelaci%C3%B3n-de-aerom%C3%A9xico-airlines
https://forum.netgate.com/topic/193921/1866-838-4906-pol%C3%ADtica-de-cancelaci%C3%B3n-de-aerom%C3%A9xico-airlines